US6274546B1 - Stable high viscosity liquid detergents - Google Patents

Stable high viscosity liquid detergents Download PDF

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US6274546B1
US6274546B1 US09/555,154 US55515400A US6274546B1 US 6274546 B1 US6274546 B1 US 6274546B1 US 55515400 A US55515400 A US 55515400A US 6274546 B1 US6274546 B1 US 6274546B1
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Dieter Legel
Josef Penninger
Theodor Voelkel
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HENKE KGaA
Henkel AG and Co KGaA
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    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/04—Water-soluble compounds
    • C11D3/046—Salts
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/0008—Detergent materials or soaps characterised by their shape or physical properties aqueous liquid non soap compositions
    • C11D17/003—Colloidal solutions, e.g. gels; Thixotropic solutions or pastes
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/04—Water-soluble compounds
    • C11D3/042—Acids
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2075—Carboxylic acids-salts thereof
    • C11D3/2086—Hydroxy carboxylic acids-salts thereof
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/22—Carbohydrates or derivatives thereof
    • C11D3/222—Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin
    • C11D3/225—Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin etherified, e.g. CMC

Definitions

  • the present invention relates to high-viscosity liquid detergents which, as a result of using a thickening system, are storage- and viscosity-stable under very diverse climatic conditions, do not undergo phase separation, and have color stability even on exposure to light.
  • High-viscosity detergents and cleaners, and also cosmetics have been increasingly offered in recent years, those products having a “gel”-like consistency being widely accepted by the consumer.
  • high-viscosity gel products have the advantage that fewer nonaqueous solvents can be used and the product can be applied in a targeted manner to stains without running.
  • additional liquid detergents are customarily converted into high-viscosity products by the use of thickening agents, such as agar agar, carrageen, tragacanth, gum arabic, alginates, pectins, polyoses, guar flour, carob seed grain, starch, dextrins, gelatin, casein, carboxy-methylcellulose and also cellulose ethers, hydroxy- ethyl- and -propylcellulose and the like, seed grain ethers, polyacrylic and polymethacrylic compounds, vinyl polymers, polycarboxylic acids, polyethers, polyimines, polyamides, polysilicic acids, clay minerals, such as montmorillonites, zeolites and silicas.
  • thickening agents such as agar agar, carrageen, tragacanth, gum arabic, alginates, pectins, polyoses, guar flour, carob seed grain, starch, dextrins, gelatin, casein, carb
  • thickeners does not automatically lead to stable gels in the case of liquid detergents.
  • a gel will usually form only by matching the nature and amount of the individual ingredients to the thickener used, some of the thickeners being incompatible with the ingredients of a liquid detergent. After storage for a few weeks, such products exhibit agglomerate formation, which is evident from the formulation becoming opaque (“cloud formation”). Additionally, the viscosity of such products sometimes drops drastically during storage. Since high-viscosity liquid detergents are usually offered in transparent bottles to highlight the esthetic features, it is also a requirement that the thickeners used are stable toward light since otherwise free-radical decomposition of the polymers arises, which manifests itself in the destruction of the product color and undesired “cloud formation”.
  • Liquid detergents with viscosities between 500 and 20,000 mPas, preferably from 2000 to 10,000 mPas, in which lamellar surfactant droplets are dispersed in an aqueous electrolyte phase are described in European Patent Application EP-A 691 399 (Colgate). These compositions comprise 10 to 45% by weight of surfactant(s), at least one builder, and 0.01 to 5% by weight of a mercapto-terminally-capped polymer having an average molecular weight between 1500 and 50,000 gmol ⁇ 1 .
  • boron compounds in aqueous liquid detergents are described in EP-A 381 262 (Unilever) .
  • These liquid detergents comprise the boron compounds and a polyol as enzyme-stabilizing system for a mixture of proteolytic and lipolytic enzymes, preferred stabilizing systems consisting of a sorbitol/borax mixture. Information about viscosity and stability of the liquid detergents is not given in this specification.
  • Liquid, aqueous detergent concentrates which retain or increase their viscosity upon dilution with water are described in EP-A 724 013 (Colgate). This effect is achieved by the use of two surfactants having varying stability toward electrolytes and the addition of a dissolved electrolyte, where the concentrate has a viscosity of less than 2500 mPas and, upon dilution with water, loses its micellar structure at the expense of the formation of a lamellar phase.
  • the International Patent Application WO 96/01305 (Unilever) describes an aqueous cleaner and liquid detergent which, upon dilution with at least twice the amount of water, forms a microemulsion which has particle sizes of from 10 to 100 nm.
  • the composition comprises 20 to 70% by weight of water, 15 to 40% by weight of a surfactant system which comprises at least one nonionic surfactant from the group of alkoxylated alcohols and not more than 20% by weight of anionic, cationic, amphoteric or zwitterionic surfactants, 5 to 30% by weight of solvent and 5 to 20% by weight of water-insoluble oil.
  • liquid detergents with said profile of properties can be prepared if a thickening system comprising a polymeric thickener, a boron compound and complexing agents is incorporated into the composition.
  • the invention therefore provides aqueous, high-viscosity liquid detergents comprising surfactant(s) and other customary ingredients of detergents and cleaners, where the compositions comprise, as thickening system, in each case based on the total composition,
  • aqueous, high-viscosity liquid detergents are those whose content of surfactant(s) is greater than 35% by weight.
  • the first component of the thickening system is a polymeric thickener.
  • These organic high molecular weight substances also called swell(ing) agents, which soak up liquids, swell up in the process and finally convert to viscous true or colloidal solutions, originate from the group of natural polymers, modified natural polymers and completely synthetic polymers.
  • Naturally occurring polymers which are used as thickeners are, for example, agar agar, carrageen, tragacanth, gum arabic, alginates, pectins, polyoses, guar flour, carob seed grain, starch, dextrins, gelatin and casein.
  • Modified natural substances mainly originate from the group of modified starches and celluloses, examples which may be mentioned here being carboxymethylcellulose and other cellulose ethers, hydroxyethyl- and -propylcellulose, and seed grain ethers.
  • a large group of thickeners which are widely used in many different fields of application are the completely synthetic polymers, such as polyacrylic and polymethacrylic compounds, vinyl polymers, polycarboxylic acids, polyethers, polyimines, polyamides and polyurethanes.
  • Thickeners from said classes of substance are commercially widely available and are obtainable, for example, under the trade names Acusol®-820 (methacrylic(stearyl alcohol-20-EO) ester-acrylic acid copolymer, 30% strength in water, Rohm & Haas), Dapral®-GT-282-S (alkylpolyglycol ether, Akzo), Deuterol®-Polymer-11 (dicarboxylic acid copolymer, Schöner GmbH), Deuteron®-XG (anionic heteropolysaccharide based on ⁇ -D-glucose, D-mannose, D-glucuronic acid, Schoner GmbH), Deuteron® -XN (nonionogenic polysaccharide, Schöner GmbH), Dicrylan®-Thickener-O (ethylene oxide adduct, 50% strength in water/isopropanol, Pfersee Chemie), EMA®-81 and EMA®-91 (ethylene-maleic anhydride copolymer, Mons
  • Preferred aqueous liquid detergents comprise, as component a) of the thickening system, 0.2 to 4% by weight, preferably 0.3 to 3% by weight and in particular 0.4 to 1.5% by weight, of a polysaccharide.
  • a preferred polymeric thickener is xanthan, a microbial anionic heteropolysaccharide which is produced by Xanthomonas campestris and a few other species under aerobic conditions and has a molar mass of from 2 to 15 million daltons.
  • Xanthan is formed from a chain with ⁇ -1,4-bonded glucose (cellulose) with side chains.
  • the structure of the subgroups consists of glucose, mannose, glucuronic acid, acetate and pyruvate, where the number of pyruvate units determines the viscosity of the xanthan.
  • Xanthan can be described by the following formula:
  • Preferred aqueous liquid detergents comprise, as component a) of the thickening system, in each case based on the total composition, 0.2 to 4% by weight, preferably 0.3 to 3% by weight and in particular 0.4 to 1.5% by weight, of xanthan.
  • the second component of the thickening system in the compositions according to the invention is a boron compound, which is used in amounts of from 0.5 to 7% by weight.
  • boron compounds which can be used for the purposes of the present invention are boric acid, boron oxide, alkali metal borates, such as ammonium, sodium and potassium ortho-, meta- and pyroborates, borax in its various stages of hydration, and polyborates, such as, for example, alkali metal pentaborates.
  • organic boron compounds such as esters of boric acid.
  • Preferred liquid detergents comprise 0.5 to 4% by weight, preferably 0.75 to 3% by weight and in particular 1 to 2% by weight, of boric acid or sodium tetraborate.
  • the liquid detergents according to the invention comprise 1 to 8% by weight of a complexing agent.
  • complexing agent means low molecular weight hydroxycarboxylic acids, such as citric acid, tartaric acid, malic acid, or gluconic acid or salts thereof.
  • Particularly preferred liquid detergents comprise, as component c) of the thickening system, citric acid or sodium citrate, preference being given to liquid detergents which comprise 2.0 to 7.5% by weight, preferably 3.0 to 6.0% by weight and in particular 4.0 to 5.0% by weight, of sodium citrate.
  • the liquid detergents according to the invention comprise surfactant(s), use being made of anionic, nonionic, cationic and/or amphoteric surfactants. From an applications viewpoint, preference is given to mixtures of anionic and nonionic surfactants, where the proportion of nonionic surfactants should be greater than the proportion of anionic surfactants.
  • the total surfactant content of the moldings is, as described above, preferably above 40% by weight, based on the total liquid detergent.
  • the nonionic surfactants used are preferably alkoxylated, advantageously ethoxylated, in particular primary alcohols having, preferably, 8 to 18 carbon atoms and, on average, 1 to 12 mol of ethylene oxide (EO) per mole of alcohol in which the alcohol radical can be linear or preferably methyl-branched in the 2-position, or can contain linear and methyl-branched radicals in a mixture, as are usually present in oxo alcohol radicals.
  • EO ethylene oxide
  • alcohol ethoxylates containing linear radicals of alcohols of native origin having 12 to 18 carbon atoms, e.g. from coconut, palm, tallow fatty or oleyl alcohol, and, on average, 2 to 8 EQ per mole of alcohol are particularly preferred.
  • Preferred ethoxylated alcohols include, for example, C 12-14 -alcohols having 3 EO, 4 EO or 7 EO, C 9-11 -alcohol having 7 EO, C 13-15 -alcohols having 3 EO, 5 EO, 7 EO or 8 EO, C 12-18 -alcohols having 3 EO, 5 EO or 7 EO and mixtures of these, for example mixtures of C 12-14 -alcohol having 3 EO and C 12-18 -alcohol having 7 EO.
  • the degrees of ethoxylation given are statistical mean values which can be an integer or a fraction for a specific product.
  • Preferred alcohol ethoxylates have a narrowed homologue distribution (narrow range ethoxylates, NRE).
  • NRE narrow range ethoxylates
  • fatty alcohols having more than 12 EO examples thereof are tallow fatty alcohol having 14 EO, 25 EO, 30 EO or 40 EO.
  • Nonionic surfactants which contain EO and PO groups together in the molecule can also be used according to the invention.
  • block copolymers having EO-PO block units or PO-EO block units can be used, but also EO-PQ-EO copolymers and PO-EO-PQ copolymers.
  • mixed alkoxylated nonionic surfactants in which EO and PO units are not distributed blockwise, but randomly. Such products can be obtained by the simultaneous action of ethylene oxide and propylene oxide on fatty alcohols.
  • nonionic surfactants which may be used are also alkyl glycosides of the general formula RO(G) x , in which R is a primary straight-chain or methyl-branched, in particular methyl-branched in the 2-position, aliphatic radical having 8 to 22, preferably 12 to 18, carbon atoms, and G is the symbol which represents a glycose unit having 5 or 6 carbon atoms, preferably glucose.
  • the degree of oligomerization x which indicates the distribution of monoglycosides and oligoglycosides, is any number between 1 and 10; x is preferably 1.2 to 1.4.
  • a further class of preferred nonionic surfactants which are either used as the sole nonionic surfactant or in combination with other nonionic surfactants, are alkoxylated, preferably ethoxylated or ethoxylated and propoxylated fatty acid alkyl esters, preferably having 1 to 4 carbon atoms in the alkyl chain, in particular fatty acid methyl esters, as are described, for example, in Japanese Patent Application JP 58/217598, or which are preferably prepared by the process described in the International Patent Application WO-A-90/13533.
  • Nonionic surfactants of the amine oxide type for example N-cocoalkyl-N,N-dimethylamine oxide and N-tallow-alkyl-N,N-dihydroxyethylamine oxide, and the fatty acid alkanolamides may also be suitable.
  • the amount of these nonionic surfactants is preferably not more than that of the ethoxylated fatty alcohols, in particular not more than half thereof.
  • Suitable surfactants are polyhydroxy fatty acid amides of the formula III
  • RCO is an aliphatic acyl radical having 6 to 22 carbon atoms
  • R 1 is hydrogen, an alkyl or hydroxyalkyl radical having 1 to 4 carbon atoms
  • [Z] is a linear or branched polyhydroxy alkyl radical having 3 to 10 carbon atoms and 3 to 10 hydroxyl groups.
  • the polyhydroxy fatty acid amides are known substances, which can usually be obtained by reductive amination of a reducing sugar with ammonia, an alkylamine or an alkanolamine, and subsequent acylation with a fatty acid, a fatty acid alkyl ester or a fatty acid chloride.
  • the group of polyhydroxy fatty acid amides also includes compounds of the formula IV,
  • R is a linear or branched alkyl or alkenyl radical having 7 to 12 carbon atoms
  • R 1 is a linear, branched or cyclic alkyl radical or an aryl radical having 2 to 8 carbon atoms
  • R 2 is a linear, branched or cyclic alkyl radical or an aryl radical or an oxy-alkyl radical having 1 to 8 carbon atoms, where C 1-4 -alkyl or phenyl radicals are preferred and [Z] is a linear polyhydroxyalkyl radical whose alkyl chain is substituted by at least two hydroxyl groups, or alkoxylated, preferably ethoxylated or propoxylated, derivatives of this radical.
  • [Z] is preferably obtained by reductive amination of a sugar, for example glucose, fructose, maltose, lactose, galactose, mannose or xylose.
  • a sugar for example glucose, fructose, maltose, lactose, galactose, mannose or xylose.
  • the N-alkoxy- or N-aryloxy-substituted compounds can then be converted into the desired polyhydroxy fatty acid amides, for example in accordance with the teaching of the International Application WO-A-95/07331 by reaction with fatty acid methyl esters in the presence of an alkoxide as catalyst.
  • the content of nonionic surfactants in preferred liquid detergents is 10 to 40% by weight, preferably 15 to 35% by weight and in particular 20 to 28% by weight, in each case based on the total composition.
  • the anionic surfactants used are, for example, those of the sulfonate and sulfate type.
  • Suitable surfactants of the sulfonate type are, in this connection, preferably C 9-13 -alkylbenzenesulfonates, olefinsulfonates, i.e. mixtures of alkene and hydroxyalkanesulfonates, and disulfonates, as are obtained, for example, from C 12-18 -monoolefins having a terminal or internal double bond by sulfonation with gaseous sulfur trioxide and subsequent alkaline or acidic hydrolysis of the sulfonation products.
  • alkanesulfonates which are obtained from C 12-18 -alkanes, for example by sulfochlorination or sulfoxidation with subsequent hydrolysis or neutralization.
  • esters of ⁇ -sulfo fatty acids e.g. the ⁇ -sulfonated methyl esters of hydrogenated coconut, palm kernel or tallow fatty acids are also suitable.
  • sulfated fatty acid glycerol esters are sulfated fatty acid glycerol esters.
  • Fatty acid glycerol esters mean the mono-, di- and triesters, and mixtures thereof, as are obtained during the preparation by esterification of a monoglycerol with 1 to 3 mol of fatty acid or during the transesterification of triglycerides with 0.3 to 2 mol of glycerol.
  • Preferred sulfated fatty acid glycerol esters are the sulfation products of saturated fatty acids having 6 to 22 carbon atoms, for example of caproic acid, caprylic acid, capric acid, myristic acid, lauric acid, palmitic acid, stearic acid or behenic acid.
  • Preferred alk(en)yl sulfates are the alkali metal, and in particular the sodium salts, of sulfuric half-esters of C 12 -C 18 -fatty alcohols, for example of coconut fatty alcohol, tallow fatty alcohol, lauryl, myristyl, cetyl or stearyl alcohol or of C 10 -C 20 -oxo alcohols and those half-esters of secondary alcohols of these chain lengths.
  • alk(en)yl sulfates of said chain length which contain a synthetic, petrochemical-base-prepared straight-chain alkyl radical which have an analogous degradation behavior to the adequate compounds based on fat-chemical raw materials.
  • the C 12 -C 16 -alkyl sulfates and C 12 -C 15 -alkyl sulfates and C 14 -C 15 -alkyl sulfates are preferred.
  • 2,3-Alkyl sulfates which are prepared, for example, according to U.S. Pat. Nos. 3,234,258 or 5,075,041 and can be obtained as commercial products from Shell Oil Company under the name DAN®, are also suitable anionic surfactants.
  • the sulfuric monoesters of the straight-chain or branched C 7-21 -alcohols ethoxylated with 1 to 6 mol of ethylene oxide, such as 2-methyl-branched C 9-11 -alcohols with, on average, 3.5 mol of ethylene oxide (EO) or C 12-18 -fatty alcohols with 1 to 4 EO are also suitable. Because of their high foaming behavior, they are used in cleaners only in relatively small amounts, for example in amounts of from 1 to 5% by weight.
  • Suitable anionic surfactants are also the salts of alkylsulfosuccinic acid, which are also referred to as sulfosuccinates or as sulfosuccinic esters, and the monoesters and/or diesters of sulfosuccinic acid with alcohols, preferably fatty alcohols and, in particular ethoxylated fatty alcohols.
  • Preferred sulfosuccinates comprise C 8-18 -fatty alcohol radicals or mixtures thereof.
  • Particularly preferred sulfosuccinates comprise a fatty alcohol radical derived from ethoxylated fatty alcohols, which are in themselves nonionic surfactants (see below for description).
  • sulfosuccinates whose fatty alcohol radicals are derived from ethoxylated fatty alcohols having a narrowed homologue distribution are, in turn, particularly preferred.
  • alk(en)ylsuccinic acid having, preferably, 8 to 18 carbon atoms in the alk(en)yl chain or salts thereof.
  • Suitable anionic surfactants are, in particular, soaps.
  • Saturated and unsaturated fatty acid soaps such as the salts of lauric acid, myristic acid, palmitic acid, stearic acid, hydrogenated erucic acid and behenic acid, and, in particular, soap mixtures derived from natural fatty acids, e.g. coconut, palm kernel, olive oil or tallow fatty acids, are suitable.
  • the anionic surfactants can be present in the form of their sodium, potassium or ammonium salts, and as soluble salts of organic bases, such as mono-, di- or triethanolamine.
  • the anionic surfactants are preferably in the form of their sodium or potassium salts, in particular in the form of the sodium salts.
  • the content of anionic surfactants in preferred liquid detergents is 10 to 35% by weight, preferably 15 to 30% by weight and in particular 20 to 25% by weight, in each case based on the total composition.
  • the viscosity of the compositions according to the invention can be measured using customary standard methods (for example Brookfield viscometer LVT-II at 20 rpm and 20° C., spindle 3) and is preferably in the range from 500 to 5000 mPas.
  • Preferred compositions have viscosities of from 1000 to 4000 mPas, values between 2000 and 3500 mPas being particularly preferred.
  • compositions according to the invention can comprise further ingredients which further improve the application and/or esthetic properties of the liquid detergent.
  • preferred compositions comprise, in addition to the thickening system and to surfactant(s), one or more substances from the group of builders, bleaches, bleach activators, enzymes, electrolytes, nonaqueous solvents, pH regulators, fragrances, perfume carriers, fluorescence agents, dyes, hydrotropic agents, foam inhibitors, silicone oils, antiredeposition agents, optical brighteners, graying inhibitors, shrink preventatives, anticrease agents, dye-transfer inhibitors, antimicrobial active ingredients, germicides, fungicides, antioxidants, corrosion inhibitors, antistats, easy-iron agents, repellent and impregnation agents, swelling and nonslip agents, and UV absorbers.
  • Builders which may be present in the liquid detergents according to the invention are, in particular, silicates, aluminum silicates (in particular zeolites), carbonates, salts of organic di- and polycarboxylic acids, and mixtures of these substances.
  • Suitable crystalline, layered sodium silicates have the general formula NaMSi x O 2x+1 .H 2 O, where M is sodium or hydrogen, x is a number from 1.9 to 4, and y is a number from 0 to 20, and preferred values for x are 2, 3 or 4.
  • Such crystalline phyllosilicates are described, for example, in European Patent Application EP-A-0 164 514.
  • Preferred crystalline phyllosilicates of the given formula are those in which M is sodium and x assumes the values 2 or 3.
  • both ⁇ - and also ⁇ -sodium disilicates Na 2 Si 2 O 5 .yH 2 O are preferred, where ⁇ -sodium disilicate can, for example, be obtained by the process described in International Patent Application WO-A-91/08171.
  • amorphous sodium silicates having a Na 2 O:SiO 2 modulus of 1:2 to 1:3.3, preferably from 1:2 to 1:2.8 and in particular from 1:2 to 1:2.6, which have delayed dissolution and secondary detergent properties.
  • the dissolution delay compared with traditional amorphous sodium silicates can have been induced in a variety of ways, for example by surface treatment, compounding, compacting/compression or by overdrying.
  • the term “amorphous” also includes “X-ray amorphous”.
  • the silicates do not give sharp X-ray reflections typical of crystalline substances, but instead exhibit, at best, one or more maxima of the scattered X-rays having a width of several degree units of the diffraction angle.
  • particularly good builder properties can result if in electron diffraction experiments the silicate particles give poorly defined or even sharp diffraction maxima. This is to be interpreted to the effect that the products have microcrystalline regions with a size ranging from 10 to a few hundred nm, preference being given to values up to at most 50 nm and in particular up to at most 20 nm.
  • So-called X-ray amorphous silicates of this kind which likewise have delayed dissolution compared to conventional waterglasses, are described, for example, in German Patent Application DE-A-44 00 024. Particular preference is given to compressed/compacted amorphous silicates, compounded amorphous silicates and overdried X-ray amorphous silicates.
  • the finely crystalline, synthetic zeolite used, containing bound water, is preferably zeolite A and/or P.
  • Zeolite P is particularly preferably zeolite MAP® (commercial product from Crosfield).
  • zeolite X is particularly preferably zeolite MAP® (commercial product from Crosfield).
  • zeolite X is particularly preferably zeolite MAP® (commercial product from Crosfield).
  • zeolite X and mixtures of A, X and/or P.
  • a co-crystallizate of zeolite X and zeolite A (about 80% by weight of zeolite X), which is sold by CONDEA Augusta S.p.A. under the trade name VEGOBOND AX® and can be described by the formula
  • the zeolite can be used as a spray-dried powder or else as an undried, stabilized suspension still moist from its preparation. If the zeolite is employed as a suspension, this suspension may comprise small additions of nonionic surfactants and stabilizers, for example 1 to 3% by weight, based on zeolite, of ethoxylated C 12 -C 18 -fatty alcohols having 2 to 5 ethylene oxide groups, C 12 -C 14 -fatty alcohols having 4 to 5 ethylene oxide groups or ethoxylated isotridecanoles.
  • Suitable zeolites have a mean particle size of less than 10 ⁇ m (volume distribution; measurement method: Coulter Counter) and preferably contain 18 to 22% by weight, in particular 20 to 22% by weight, of bound water.
  • the sodium salts of the orthophosphates, the pyrophosphates and, in particular, of the tripolyphosphates are particularly suitable.
  • bleaches which donate H 2 O 2 in water sodium perborate tetrahydrate and sodium borate monohydrate are of particular importance.
  • Other bleaches which can be used are, for example, sodium percarbonate, peroxypyrophosphates, citrate perhydrates, and H 2 O 2 -donating peracidic salts or peracids, such as perbenzoate, peroxophthalates, diperazelaic acid, phthaloimino peracid or diperdodecanedioic acid.
  • bleach activators can be incorporated into the detergent and cleaner moldings.
  • Bleaching activators which can be used are compounds which, under conditions of perhydrolysis, give aliphatic peroxocarboxylic acids having, preferably, 1 to 10 carbon atoms, in particular 2 to 4 carbon atoms, and/or optionally substituted perbenzoic acid.
  • Suitable substances are those which carry O- and/or N-acyl groups of the stated number of carbon atoms and/or optionally substituted benzoyl groups.
  • polyacylated alkylenediamines in particular tetraacetyl-ethylenediamine (TAED), acylated triazine derivatives, in particular 1,5-diacetyl-2,4-dioxohexahydro-1,3,5-triazine (DADHT), acylated glycolurils, in particular tetraacetylglycoluril (TAGU), N-acyl imides, in particular N-nonanoylsuccinimide (NOSI), acylated phenolsulfonates, in particular n-nonanoyl- or isononanoyloxybenzenesulfonate (n- and iso-NOBS respectively), carboxylic anhydrides, in particular phthalic anhydride, acylated polyhydric alcohols, in particular triacetin, ethylene glycol diacetate and 2,5-diacetoxy-2,5-dihydrofuran.
  • TAED te
  • bleaching catalysts are bleach-reinforcing transition metal salts or transition metal complexes such as, for example, Mn, Fe, Co, Ru or Mo salen complexes or carbonyl complexes. Mn, Fe, Co, Ru, Mo, Ti, V and Cu complexes with nitrogen-containing tripod ligands, and Co, Fe, Cu and Ru ammine complexes can also be used as bleaching catalysts.
  • Suitable enzymes are, in particular, those from the classes of hydrolases, such as the proteases, esterases, lipases and lipolytic enzymes, amylases, cellulases and other glycosyl hydrolases and mixtures of said enzymes.
  • hydrolases such as the proteases, esterases, lipases and lipolytic enzymes, amylases, cellulases and other glycosyl hydrolases and mixtures of said enzymes.
  • hydrolases include the removal of marks, such as protein-, grease- or starch-containing marks, and grayness.
  • cellulases and other glycosyl hydrolases may, by removing pilling and microfibrils, contribute to color retention and to an increase in the softness of the textile. For bleaching or for inhibiting color transfer it is also possible to use oxireductases.
  • Particularly suitable enzymatic active ingredients are those obtained from bacterial strains or fungi, such as Bacillus subtilis, Bacillus licheniformis, Streptomyceus griseus and Humicola insolens. Preference is given to using proteases of the subtilisin type and in particular proteases obtained from Bacillus lentus.
  • enzyme mixtures for example mixtures of protease and amylase or protease and lipase or lipolytic enzymes or protease and cellulase or mixtures of cellulase and lipase or lipolytic enzymes or mixtures of protease, amylase and lipase or lipolytic enzymes or protease, lipase or lipolytic enzymes and cellulase, but in particular protease and/or lipase-containing mixtures, or mixtures containing lipolytic enzymes.
  • lipolytic enzymes of this kind are the known cutinases.
  • Peroxidases or oxidases have also proven to be suitable in some cases.
  • Suitable amylases include, in particular, ⁇ -amylases, isoamylases, pullulanases and pectinases.
  • the cellulases used are preferably cellobiohydrolases, endoglucanases and ⁇ -glucosidases, which are also called cellobiases, or mixtures thereof. Since different cellulase types differ in their CMCase and avicelase activities, it is possible to adjust the desired activities by targeted mixing of the cellulases.
  • the enzymes can be adsorbed on carrier substances or embedded into enveloping substances in order to protect them from premature decomposition.
  • the proportion of enzymes, enzyme mixtures or enzyme granules can, for example, be from about 0.1 to 5% by weight, preferably 0.12 to about 2% by weight.
  • the electrolytes from the group of inorganic salts used can be a large number of very different salts.
  • Preferred cations are the alkali metals and alkaline earth metals, preferred anions are the halides and sulfates.
  • the use of NaCl or MgCl 2 in the compositions according to the invention is preferred.
  • the proportion of electrolytes in the compositions according to the invention is usually 0.5 to 5% by weight.
  • Nonaqueous solvents which can be used in the compositions according to the invention originate, for example, from the group of mono- or polyhydric alcohols, alkanolamines or glycol ethers, provided they are miscible with water in the given concentration range.
  • the solvents are preferably chosen from ethanol, n- or i-propanol, butanols, glycol, propane- or butanediol, glycerol, diglycol, propyl or butyl diglycol, hexylene glycol, ethylene glycol methyl ether, ethylene glycol ethyl ether, ethylene glycol propyl ether, ethylene glycol mono-n-butyl ether, diethylene glycol methyl ether, diethylene glycol ethyl ether, propylene glycol methyl, ethyl or propyl ether, dipropylene glycol monomethyl or -ethyl ether, disopropylene glycol monomethyl or -ethyl ether, methoxy-, ethoxy- or butoxytriglycol, 1-butoxyethoxy-2-propanol, 3-methyl-3-methoxybutanol, propylene glycol t-butyl ether and mixtures
  • pH regulators In order to bring the pH of the compositions according to the invention into the desired range, it is possible to use pH regulators. Use can be made here of any known acids or alkalis, provided their use is not precluded for application or ecological reasons or for reasons of consumer protection. The amount of these regulators does not usually exceed 2% by weight of the total formulation.
  • compositions according to the invention can be colored with suitable dyes.
  • Preferred dyes the choice of which does not present any problems at all to the person skilled in the art, have high storage stability and high insensitivity toward the other ingredients of the compositions and toward light, and do not have marked substantivity toward textile fibers in order not to dye these.
  • Suitable foam inhibitors which can be used in the compositions according to the invention are, for example, soaps, paraffins or silicone oils which can optionally be deposited on carrier materials.
  • Suitable antiredeposition agents which are also referred to as soil repellents, are, for example, nonionic cellulose ethers, such as methylcellulose and methyl-hydroxypropylcellulose having a proportion of methoxy groups of from 15 to 30% by weight and of hydroxypropyl groups of from 1 to 15% by weight, in each case based on the nonionic cellulose ethers, and the polymers, known from the prior art, of phthalic acid and/or terephthalic acid or derivatives thereof, in particular polymers of ethylene terephthalates and/or polyethylene glycol terephthalates or anionically and/or nonionically modified derivatives thereof. Of these, particular preference is given to the sulfonated derivatives of phthalic acid and terephthalic acid polymers.
  • Optical brighteners can be added to the compositions according to the invention in order to eliminate graying and yellowing of the treated textiles. These substances attach to the fibers and effect a brightening and simulated bleaching action by converting invisible ultraviolet radiation into visible longer-wavelength light, the ultraviolet light absorbed from sunlight being irradiated as a pale bluish fluorescence and, together with the yellow shade of the grayed or yellowed laundry, producing pure white.
  • Suitable compounds originate, for example, from the classes of substance of 4,4′-diamino-2,2′-stilbene-disulfonic acids (flavonic acids), 4,4′-distyrylbiphenylene, methylumbelliferones, coumarins, dihydroquinolinones, 1,3-diarylpyrazolines, naphthalimides, benzoxazol, benzisoxazol and benzimidazol systems, and pyrene derivatives substituted by heterocycles.
  • the optical brighteners are usually used in amounts between 0.05 and 0.3% by weight, based on the finished composition.
  • Graying inhibitors have the task of holding the soil detached from the fiber in suspended form in the liquor, thus preventing soil reattachment.
  • Suitable for this purpose are water-soluble colloids, mostly of an organic nature, for example glue, gelatin, salts of ether sulfonic acids of starch or of cellulose or salts of acidic sulfuric esters of cellulose or of starch.
  • Water-soluble polyamides which contain acidic groups are suitable for this purpose.
  • cellulose ethers such as carboxymethylcellulose (Na salt), methylcellulose, hydroxyalkylcellulose and mixed ethers, such as methylhydroxyethylcellulose, methylhydroxypropylcellulose, methylcarboxymethylcellulose and mixtures thereof in amounts of from 0.1 to 5% by weight, based on the compositions.
  • compositions according to the invention can comprise synthetic anticrease agents.
  • synthetic anticrease agents include, for example, synthetic products based on fatty acids, fatty acid esters, fatty acid amides, fatty acid alkylol esters, fatty acid alkylolamides or fatty alcohols, which are mostly reacted with ethylene oxide, or products based on lecithin or modified phosphoric esters.
  • compositions according to the invention can comprise antimicrobial active ingredients.
  • antimicrobial active ingredients A distinction is drawn here, depending on the antimicrobial spectrum and effectivity mechanism, between bacteriostats and bactericides, fungistats and fungicides etc.
  • Important substances from these groups are, for example, benzalkonium chlorides, alkylaryl sulfonates, halogenated phenols and phenol mercuriacetate, it also being possible to dispense with these compounds completely in the case of the compositions according to the invention.
  • the compositions can comprise antioxidants.
  • This class of compound includes, for example, substituted phenols, hydroquinones, pyrocatechols and aromatic amines, and organic sulfides, polysulfides, dithiocarbamates, phosphites and phosphonates.
  • Antistats increase the surface conductivity and thus permit an improved flow of charges formed.
  • External antistats are usually substances having at least one hydrophilic molecular ligand and produce a more or less hygroscopic film on the surfaces. These mostly surface-active antistats can be subdivided into nitrogen-containing antistats (amines, amides, quaternary ammonium compounds), phosphorus-containing antistats (phosphoric esters) and sulfur-containing antistats (alkylsulfonates, alkyl sulfates).
  • silicone derivatives for example, can be used in the compositions according to the invention. These additionally improve the rinse-out behavior of the compositions according to the invention by their foam-inhibiting properties.
  • Preferred silicone derivatives are, for example, polydialkyl- or alkylarylsiloxanes in which the alkyl groups have one to five carbon atoms and are completely or partially fluorinated.
  • Preferred silicones are polydimethylsiloxanes which can optionally be derivatized and then are aminofunctional or quaternized, or have Si—OH, Si—H and/or Si—Cl bonds.
  • the viscosities of the preferred silicones are, at 25° C., in the range between 100 and 100,000 mPas, it being possible to use the silicones in amounts between 0.2 and 5% by weight, based on the total composition.
  • compositions according to the invention can also comprise UV absorbers, which attach to the treated textiles and improve the light resistance of the fibers.
  • UV absorbers which attach to the treated textiles and improve the light resistance of the fibers.
  • Compounds which have these desired properties are, for example, the compounds and derivatives of benzophenone having substituents in the 2- and/or 4-position which are effective by nonradiative deactivation.
  • substituted benzotriazols, acrylates phenyl-substituted in the 3-position (cinnamic acid derivatives), optionally with cyano groups in the 2-position, salicylates, organic Ni complexes, and natural substances such as umbelliferone and endogenous urocanic acid are also suitable.
  • Suitable heavy metal complexing agents are, for example, the alkali metal salts of ethylene-diaminetetraacetic acid (EDTA) or of nitrilotriacetic acid (NTA), and alkali metal salts of anionic polyelectrolytes, such as polymaleates and polysulfonates.
  • EDTA ethylene-diaminetetraacetic acid
  • NTA nitrilotriacetic acid
  • anionic polyelectrolytes such as polymaleates and polysulfonates.
  • a preferred class of complexing agents are the phosphonates, which are present in preferred liquid detergents in amounts of from 0.01 to 1.5% by weight, preferably from 0.02 to 1% by weight and in particular from 0.03 to 0.5% by weight.
  • These preferred compounds include, in particular, organophosphonates, such as, for example, 1-hydroxyethane-1,1-diphosphonic acid (HEDP), aminotri(methylenephosphonic acid) (ATMP), diethylenetriaminepenta(methylenephosphonic acid) (DTPMP or DETPMP), and 2-phosphonobutane-1,2,4-tricarboxylic acid (PBS-AM), which is used in most cases in the form of its ammonium or alkali metal salts.
  • organophosphonates such as, for example, 1-hydroxyethane-1,1-diphosphonic acid (HEDP), aminotri(methylenephosphonic acid) (ATMP), diethylenetriaminepenta(methylenephosphonic acid) (DTPMP or DETPMP), and 2-phosphonobutane
  • Particularly preferred liquid detergents comprise, as component c) of the thickening system, 1-hydroxyethane-1,1-diphosphonic acid in the form of its ammonium or alkali metal salts.
  • compositions according to the invention are prepared by simply mixing the constituents in stirred-tank reactors, water, nonaqueous solvents and surfactant(s) advantageously being introduced first, and the other constituents being added in portions thereto. Separate heating during the preparation is not required, but if it is desired, the temperature of the mixture should not exceed 80° C.
  • Carbopol® ETD 2690 acrylic acid copolymer and monomers (Goodrich)
  • Dequest® 2016 D hydroxyethane-1,1-diphosphonic acid, tetrasodium salt (Monsanto)
  • Keltrol® T xanthan gum, polysaccharide (Kelco)

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US20030139317A1 (en) * 2000-02-03 2003-07-24 Ansgar Behler Surfactant mixture with fatty alcohol alkoxylates made fron vegetable raw materials
US20040063598A1 (en) * 2000-08-17 2004-04-01 Hans-Juergen Riebe Mechanically stable, liquid formulation washing, rinsing or cleaning agent doses
US20040180800A1 (en) * 2003-03-10 2004-09-16 Mcmahan John Marshall Cleaning and protecting composition with antioxidant and UV light resistance and method of use
US6835705B2 (en) * 2001-06-08 2004-12-28 Givaudan Sa Viscosity-stabilizing cleaning composition
CN111836926A (zh) * 2017-10-20 2020-10-27 大家的地球公司 用于含纤维素织物的增白组合物

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DE19853110A1 (de) * 1998-11-18 2000-05-25 Cognis Deutschland Gmbh Gelförmiges Reinigungsmittel für Spültoiletten
DE19953057A1 (de) * 1999-11-03 2001-05-10 Henkel Kgaa Enzymhaltige höherviskose Flüssigwaschmittel
KR100454916B1 (ko) * 2002-05-17 2004-11-06 신승엽 흘러내림 방지를 위한 브레지어 어깨끈용 투명 반짝이조성물
US8067350B2 (en) * 2005-12-15 2011-11-29 Kimberly-Clark Worldwide, Inc. Color changing cleansing composition
DE102006009578A1 (de) * 2006-02-28 2007-09-06 Henkel Kgaa Vergrauungsinhibierendes Flüssigwaschmittel
DE102007036910A1 (de) 2007-08-06 2009-02-12 Henkel Ag & Co. Kgaa Verdicktes, flüssiges Wasch- oder Reinigungsmittel
JP2009191098A (ja) * 2008-02-12 2009-08-27 Diversey Ip Internatl Bv 衣料用液体洗浄剤組成物
DE102009027811A1 (de) * 2009-07-17 2011-01-20 Henkel Ag & Co. Kgaa Flüssiges Wasch-oder Reinigungsmittel mit vergrauungsinhibierendem Polysaccarid
US9582262B2 (en) 2014-06-16 2017-02-28 Wipro Limited Systems and methods for installing upgraded software on electronic devices
KR101838965B1 (ko) * 2015-10-05 2018-04-26 주식회사 고은빛 크레용 전용 지우개
DE102020007520A1 (de) 2020-12-09 2022-06-09 Ovidiu Dicoi Modifizierte strukturierte, fließfähige Wasch- und Reinigungsmittel

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030139317A1 (en) * 2000-02-03 2003-07-24 Ansgar Behler Surfactant mixture with fatty alcohol alkoxylates made fron vegetable raw materials
US20040063598A1 (en) * 2000-08-17 2004-04-01 Hans-Juergen Riebe Mechanically stable, liquid formulation washing, rinsing or cleaning agent doses
US6835705B2 (en) * 2001-06-08 2004-12-28 Givaudan Sa Viscosity-stabilizing cleaning composition
US20040180800A1 (en) * 2003-03-10 2004-09-16 Mcmahan John Marshall Cleaning and protecting composition with antioxidant and UV light resistance and method of use
CN111836926A (zh) * 2017-10-20 2020-10-27 大家的地球公司 用于含纤维素织物的增白组合物

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EP1034242A1 (de) 2000-09-13
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WO1999027051A1 (de) 1999-06-03
HU228346B1 (en) 2013-03-28
HUP0004376A3 (en) 2002-07-29
JP4394829B2 (ja) 2010-01-06
PL188031B1 (pl) 2004-11-30
ES2202919T3 (es) 2004-04-01
PL340638A1 (en) 2001-02-12
DE19752165A1 (de) 1999-05-27
KR20010032542A (ko) 2001-04-25
EP1034242B1 (de) 2003-06-25
HUP0004376A2 (en) 2001-03-28
DE59808845D1 (de) 2003-07-31
JP2001524584A (ja) 2001-12-04

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